US ALLERGY & ASTHMA
NPI 1821758525
Allergy & Immunology in Frisco, TX
About Us Allergy & Asthma NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
US ALLERGY & ASTHMA (NPI 1821758525) is a healthcare organization registered as an allergy & immunology in Frisco, Texas and active in the NPI registry since December 2021. The organization holds a CLIA Waiver certificate valid through June 5, 2027, maintains a secondary practice location in Plano, and lists Naveen Sikka, Owner, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Group Practice 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Us Allergy & Asthma is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Revalidation Due Date
Revalidation due by March 31, 2027
Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.
Clinicians Billing Medicare Through This Organization
2Medicare enrollment records show 2 clinicians reassign Medicare billing to Us Allergy & Asthma, which bills Medicare for the services they deliver. Of these, 2 practice at this address. They are listed nearest first.
Clinicians, nearest first (2)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
CLIA Laboratory Certificates CMS CLIA
Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.
Certificate of Waiver 45D2283318
Us Allergy & Asthma · Frisco, TXFrequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Us Allergy & Asthma's NPI number?
The NPI number for Us Allergy & Asthma is 1821758525. It was assigned to this organization in the NPPES registry on December 21, 2021.
Where is Us Allergy & Asthma located?
Us Allergy & Asthma is located at 11500 State Highway 121 Ste 910, Frisco, TX 75035. The listed phone number is (469) 200-2605.
What is Us Allergy & Asthma's specialty?
The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.
Is Us Allergy & Asthma enrolled in Medicare?
Yes. Us Allergy & Asthma is registered in the Medicare PECOS enrollment system.
When is Us Allergy & Asthma's Medicare revalidation due?
According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (Texas, Clinic/Group Practice) is due for revalidation by March 31, 2027. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.
How many clinicians bill Medicare through Us Allergy & Asthma?
According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians, all in Allergy/Immunology, reassign their Medicare billing to Us Allergy & Asthma. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Of these, 2 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Does Us Allergy & Asthma hold a CLIA laboratory certificate?
Yes. A Certificate of Waiver (number 45D2283318) is associated with this NPI, valid through June 5, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.
What insurance does Us Allergy & Asthma accept?
Health plans from WellPoint list Us Allergy & Asthma as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Us Allergy & Asthma was last updated on February 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Us Allergy & Asthma · NPI 1821758525
Allergy & Immunology organization in Frisco, Texas. Organization record, active in the CMS NPPES registry since December 21, 2021.
## Identity
- **NPI:** 1821758525 (Entity type: Organization)
- **Enumerated:** December 21, 2021
- **Primary specialty:** Allergy & Immunology · taxonomy 207K00000X
- **Organization subpart:** No
- **Authorized official:** Naveen Sikka, OWNER
## Practice location
- **Address:** 11500 STATE HIGHWAY 121 STE 910, Frisco, TX 75035-9347
- **Phone:** (469) 200-2605 · **Fax:** (469) 200-2606
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Medicare revalidation due:** March 31, 2027 (Non-DME Part B, Texas, Clinic/Group Practice) · CMS Revalidation Due Date List, October 2026 release
- **Clinicians billing through this organization:** 2 clinicians (Allergy/Immunology) reassign Medicare billing to this organization (form CMS-855R); 2 practice at this address · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** February 2, 2026
- **CLIA laboratory certificates:** 1 on file
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Source: [NPI Profile](https://npiprofile.com/npi/1821758525) · Data from the CMS NPPES public registry.